search_ads_by_advertiser
AI agents call search_ads_by_advertiser to retrieve information from LinkedIn Intelligence MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to query or list LinkedIn ads filtered by advertiser—a read-only retrieval operation. Despite the empty description lowering confidence slightly, the name and placement among other analytics and research tools (batch_get_profiles, analyze_engagement, etc.) indicate this is informational lookup rather than creation, execution, destruction, or financial action.
From the tool's definition Tool name 'search_ads_by_advertiser' indicates a search/query operation that retrieves ad data based on advertiser filters.
Documented attack patterns abuse exactly the kind of access search_ads_by_advertiser gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and LinkedIn Intelligence MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for search_ads_by_advertiser:
{
"version": "1",
"default": "deny",
"tools": {
"search_ads_by_advertiser": {}
}
}search_ads_by_advertiser is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
search_ads_by_advertiser. It is categorised as a Read tool in the LinkedIn Intelligence MCP Server MCP Server, which means it retrieves data without modifying state.
Register the LinkedIn Intelligence MCP Server MCP server in PolicyLayer and add a rule for search_ads_by_advertiser: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches LinkedIn Intelligence MCP Server. Nothing to install.
search_ads_by_advertiser is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search_ads_by_advertiser rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for search_ads_by_advertiser. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
search_ads_by_advertiser is provided by the LinkedIn Intelligence MCP Server MCP server (southleft/linkedin-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 87 LinkedIn Intelligence MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
87 LinkedIn Intelligence MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.